Dimensions of Physics Quantities NEET Questions

Dimensions of Physics Quantities MCQ Questions

13.
The dimensional formula of power (P = W/t) is:
A.
[ML²T⁻²]
B.
[ML²T⁻³]
C.
[ML³T⁻³]
D.
[MLT⁻³]
ANSWER :
B. [ML²T⁻³]
14.
If force (F), velocity (V), and time (T) are taken as fundamental units, then the dimensions of mass are:

NEET - 2014

A.
[F V⁻¹ T⁻¹]
B.
[F V⁻¹ T]
C.
[F V T⁻¹]
D.
[F V T⁻²]
ANSWER :
B. [F V⁻¹ T]
15.
The dimensional formula of pressure (P = F/ is:
A.
[ML²T⁻²]
B.
[MLT⁻²]
C.
[ML⁻¹T⁻²]
D.
[MLT⁻³]
ANSWER :
C. [ML⁻¹T⁻²]
16.
Which pair of physical quantities has the SAME dimensional formula [ML²T⁻²]?
A.
Force and Momentum
B.
Work and Torque
C.
Power and Force
D.
Pressure and Stress
ANSWER :
B. Work and Torque
17.
The dimensional formula of the gravitational constant G (from F = Gm₁m₂/r²) is:
A.
[M⁻¹L³T⁻²]
B.
[ML³T⁻²]
C.
[M⁻¹L²T⁻²]
D.
[ML²T⁻²]
ANSWER :
A. [M⁻¹L³T⁻²]
18.
The dimensional formula of Planck's constant h (from E = hν) is:
A.
[ML²T⁻²]
B.
[ML²T⁻¹]
C.
[MLT⁻¹]
D.
[ML²T⁻³]
ANSWER :
B. [ML²T⁻¹]